Chemistry - Chemical Equilibrium Question with Solution | TestHub
ChemistryChemical EquilibriumProblems involving more than one equilibriumHard2 minQB
ChemistryHardsingle choice
Which pair gives, respectively, the equilibrium constant for hydrazine formation and that for N2H4(g) + H2(g) ⇌ 2NH3(g)?
Options:
Answer:
D
Solution:
The atom balances give nitrogen and hydrazine partial pressures of 3p* and 2p*. The hydrazine formation constant is Kp,2 = (2p*)/[(3p*)(4p*)2] = 1/(24p*2).
Subtract hydrazine formation from ammonia formation to obtain the second reaction.
Its equilibrium constant is Kp,1/Kp,2 = [1/(48p*2)]/[1/(24p*2)] = 1/2.
The required pair is option (d).
Stream:JEESubject:ChemistryTopic:Chemical EquilibriumSubtopic:Problems involving more than one equilibrium
⏱ 2mℹ️ Source: QB
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